Unauthenticated root code execution via SOAP token overflow
Published Jan 13, 2022 · Updated Aug 4, 2024
Stack-based buffer overflow in NETGEAR R6260 firmware 1.1.0.78_1.0.1 allows network-adjacent attackers to execute code as root. The setupwizard.cgi page copies the user-controlled SOAP_LOGIN_TOKEN environment value into a fixed-length stack buffer without validating its length. No authentication or user interaction is required, but the attacker must have adjacent-network access to the router's management interface.
Summary
What happened
Stack-based buffer overflow in NETGEAR R6260 firmware 1.1.0.78_1.0.1 allows network-adjacent attackers to execute code as root. The setupwizard.cgi page copies the user-controlled SOAP_LOGIN_TOKEN environment value into a fixed-length stack buffer without validating its length. No authentication or user interaction is required, but the attacker must have adjacent-network access to the router's management interface.
The record
- CVE
- CVE-2021-34980
- Published
- Jan 13, 2022
- Updated
- Aug 4, 2024
- Vendor
- NETGEAR
- Product
- AC1600 Smart WiFi Router Dual Band Gigabit (R6260)
- Classifications
- CWE-121, CWE-787, T1190
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 13, 2022CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.1.0.78_1.0.1
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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